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0 pointslxgr1mo ago0 comments

> Otherwise it makes a strong case for the continued use of "private networks" and the IPv6 ULA mechanism.

Let's please not. Even without inbound reachability, hole punching is significantly easier given globally routeable addresses.

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themafia1mo ago

You can have /both/ a ULA and a Globally Routable address. In practice it works just fine. My internal DNS points to the ULA for internal connectivity and my hosts use their global addresses for external connectivity.

lxgrOP1mo ago

Ah, you mean for cases where you want both stable addresses (even if only internal) and globally reachable ones (even if non-constant)?

Yeah, that works, but everything gets much easier if your internal DNS can just support the varying prefix natively, e.g. via integration with the external-facing DHCP or PPPoE or whatever other address configuration protocol you use, since then you can reach everything both locally and globally by name.

themafia1mo ago

> but everything gets much easier

It also gets more fragile. If your ISP can't or doesn't issue you a prefix for whatever reason then your entire IPv6 network stops working even internally. This is even more pertinent if, like me, you're on a 4G LTE connection. Verizon has great IPv6 support, when you can get it, and when you can't I'd still prefer to have a stable internal network.

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0 pointslxgr1mo ago0 comments

> Otherwise it makes a strong case for the continued use of "private networks" and the IPv6 ULA mechanism.

Let's please not. Even without inbound reachability, hole punching is significantly easier given globally routeable addresses.

0 comments

themafia1mo ago

lxgrOP1mo ago

Ah, you mean for cases where you want both stable addresses (even if only internal) and globally reachable ones (even if non-constant)?

themafia1mo ago

> but everything gets much easier

j / k navigate · click thread line to collapse